i know its hard cos i don't have the graph to show you but could anyone explain what to do

**0**

# 2002 paper 1

Started by x_Claire_x, May 15 2006 07:16 PM

2 replies to this topic

### #1

Posted 15 May 2006 - 07:16 PM

**Just**Doesn't

*Be*Yourself__It__**Matter If**It's

**Good**

__Enough__For Someone*Else*### #2

Posted 15 May 2006 - 08:21 PM

Okay, it's difficult to explain how to do this. Look at the graph of f(x), the PI's and turning points will become roots on the derived function graph (keeping the same x-coordinate). When the graph of f(x) is increasing, the derived graph will be above the x axis. When f(x) is decreasing, the derived graph will be below the x axis.

Here's the answer to the question, hopefully this will help to illustrate my point.

2002 Paper 1 - Question 6

Here's the answer to the question, hopefully this will help to illustrate my point.

2002 Paper 1 - Question 6

### #3

Posted 18 May 2006 - 09:37 PM

Here's a website which might help with graphing the derivative problems:

http://people.hofstra.edu/faculty/Stefan_W...rivgraphex.html

http://people.hofstra.edu/faculty/Stefan_W...rivgraphex.html

H tends 2 infinity

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